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This paper studies a robust uplink power control scheme with imperfect channel state information (CSI) in two-tier femtocell network systems. Aiming at enhancing the system’s robustness, we formulate an outage-based robust optimization problem. Specifically, we focus on two scenarios including partial CSI feedback and no CSI feedback. In the former scenario, channel gain error vectors obey multivariate...
For multisensor system with unknown cross-covariances among local estimation errors, the batch covariance intersection (BCI) fusion estimation algorithm requires the optimization of a multi-dimensional nonlinear cost function, which yields a larger computational burden and computational complexity. A fast sequential covariance intersection (SCI) Kalman filtering algorithm is presented in this paper,...
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